Home / 1,943.33-2,911.64-1,308.92

Finding the Fourth Proportional to 1,943.33, 2,911.64 and 1,308.92

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Solution

The fourth proportional to 1,943.33, 2,911.64 and 1,308.92 is: 1,961.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.33 : 2,911.64 = 1,308.92 : x
  2. Step 2: Convert to fraction form
    1,943.33/2,911.64 = 1,308.92/x
  3. Step 3: Cross multiply
    1,943.33x = 2,911.64 × 1,308.92
  4. Step 4: Simplify right side
    1,943.33x = 3,811,082.73
  5. Step 5: Solve for x
    x = 3,811,082.73/1,943.33
  6. Step 6: Final answer
    x = 1,961.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.